That still doesnt address the storage, security other than antispam / antivirus etc :) If he's got to ask how to build it .. On Wed, Jun 8, 2011 at 8:44 AM, John LeCoque <jleq96 at gmail.com> wrote: > What about starting with Zimbra's Open Source edition, and building onto it? -- Suresh Ramasubramanian (ops.lists at gmail.com)